Pumping-engine.



0. L. HBISLER. PUMPING ENGINE.

APPLICATION FILED APR. 4, 1902.

PA TENTED MAY 14, 1907.

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No. 853,359. PATENTED MAY 14,1907.

0. L. H'EISLER.

PUMPING ENGINE.

APPLIGATION FILED APR 4. 1902.

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PUMPING-ENGINE.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed April 4, 1902. Serial No. 101,834.

To a, whom, it may concern:

Be it known that l., (hrn'nnns'li. llnrsmin, a citizen ol the United States, and a resident ()1: Erie, in. the cminty of Erie and. State of Pennsylvania, have invented certain new and useful I1npr )vements in. Compensating High-Duty vPumpii1g-Engines, oi which the i'ollowing is a specification.

My ii'ivention relates to improvements in high duty eoinpensatil'ig pumping engines, in which a system of componsatii'ig levers eonnect the pair of reciprocating piston or plunger rods, in such a manner as to form a substitute for a ily wheel, and which fix the mo tion or strokes of the reciprocating piston rods relatively with each other.

.lhe" pur )osc of" the ii'ivcntion is to provide an autmnatic starting and regulating device attachcnl to the pumping engine in such a manner as to maintain the proper proportion of power developed in the steam cylinder or cylinders attached to one of the reciprocating plunger or piston rods, as compared with the power exerted by the steam acting on the other reciprocating rod; thereby producing a more uniform and quiet action, and materially lessening the stress upon the compen sating system of levers.

Figure 1 shows a general arrangement of the compensating system and application of the automatic valve 011 the steam cylinders. Fig. 2 shows a cross section of the automatic valve when flexible metallic diaphragms of different areas are used instead of movable pistons as shown in Fig. 3. Fig. 4 shows a top outside view of the cross section in Fig. 2. Fig. 5 shows a detail of the valve. Fig. 6 shows a general top view of the engine.

The valve accomplishes its object by automatically icy-passing steam from one side of the engine having the higher steam pressure to the other, so that the pressures will be maintained in the proper proportion rela tively; thereby causing the requisite amount of work to be done on either side, as may be necessary for uiet and uniform action.

The valves s own in Figs. 2 and 3 are identical, excepting that in Fig. 8, the diaphragms 1 and 2 are different in form. The steam from the high pressure steam chest 3, forming part of the cylinder 12, and attached to the right hand rod 13, enters the chamber 4 containing the smaller diaphragm 1. A valve 5 intercepts a port 6 in the diaphragm,

which leads to the lar er dia' hra m chamber h b 7, and. lroin there to a 'l'tKZOJVOl' k) or steam chest 9 ol' the cylinder 10 attached to the leftpiston rod. 1].. The space H. between. the diaphragms may be open to the atmosphere.

By proportionii'ig the areas oi. the di aphragnis to suit the cylinder ratios, the desired reduction of pressure may be obtained, which may be further adjusted by means of the threaded valve stem 15. The springs 16 and 17 acting to increase or decrease the amount of dillerence in pressure necessary to move the diaphragms and open the valve 5. Between the valve 5 and its seat 18 is placed I a ball ring 19, so constructed that the valve 5 will close tightly in case it is not fair with the scat. Suitable means for retaining the ball ring in its proper place is provided by the lugs 20. A spring 21, acting against the ball ring 19, prevents it chattering when steam passes through the valve. A stop valve 22 is arranged between the automatic valve and one of the cylinders, so the'latter may be out out when necessary.

When starting the engine, steam is ad mitted into the high pressure steam chest, then because of the difference of pressure, steam passes into the low pressure side and gives the necessary pressure for a starting.

Evidently, the invention is not limited in its application to the particular compensating linkage shown, but maybe applied to similar compens ating engines.

Having fully described my invention, I claim as follows 1. In a direct acting pumping engine, the combination of compound steam cylinders connected to a duplex pump end, a compensating lever system connecting the pair of reciprocating plunger or piston rods-and an automatic steam valve intercepting a steam passage between a steam chest or receiver on one side, and a steam chest or receiver 011 the other side, having a lower steam pres sure, the said valves having a pair of diaphragms or pistons of different area, a valve actuated by said pistons or diaphragms conjointly, and an adjustable valve opening arranged. upon said diaphragms.

2. In a direct acting pumping engine, the combination of compound steam cylinders connected to a duplex pump end, a compensating lever system connecting the pair of re-- 4 ciprocating plunger or piston rods, and an automatic steam valve intercepting it steam the Held automatic valve and one of the passage between a steam chest or receiver on steam cylinders. (0 one side. and (LStGtUIl()l'lCSlJ()IIGOGlVGI'OTllLhG In testimony whereof 1. sign, my name other side, having a. lower steam pressure, hereunte 5' the said valve having a pair of diaphrztgms CHARLES L. IIEISJJER.

0r pistons el. (,lil'lerent areas, a valve aetu ated Witnesses: by said pistons or diaphragms eenjointly, F. WM. llmsucu.

an auxiliary stop valve interposed between M. A. DAVIES. 

